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Ig u should know it for DAT test...
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IgA
antibody that acts as immune function of mucous membranes
In bodily secretions like milk, tears, saliva
Transfers passive immunity to newborns through breastfeeding
Dimer
IgD
Activates B cells
Monomer
IgE
Role in allergic reactions
Monomer
IgG
In blood and extracellular fluid
Long-term protection
Important in fighting bacterial and viral infections
Can cross placenta to provide passive immunity to the developing fetus
Monomer
IgM
FIRST ANTIBODY TO BE PRODUCED in response to infection
Effective in forming complexes with antigens, initiating immune response
Pentameric form – 5 linked monomers